Pith Number

pith:IB5TC65H

pith:2018:IB5TC65HIQXL6O7ACUQXOEPBPC

not attested not anchored not stored refs pending

An Open Newton Method for Piecewise Smooth Functions

Andreas Griewank, Lutz Lehmann, Manuel Radons, Tom Streubel

arxiv:1808.00213 v1 · 2018-08-01 · math.OC · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IB5TC65HIQXL6O7ACUQXOEPBPC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:09:08.397233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

407b317ba7442ebf3be015217711e17886f8e7712fcd67059067ee782a71ddbe

Aliases

arxiv: 1808.00213 · arxiv_version: 1808.00213v1 · doi: 10.48550/arxiv.1808.00213 · pith_short_12: IB5TC65HIQXL · pith_short_16: IB5TC65HIQXL6O7A · pith_short_8: IB5TC65H

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/IB5TC65HIQXL6O7ACUQXOEPBPC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 407b317ba7442ebf3be015217711e17886f8e7712fcd67059067ee782a71ddbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c50dab9d732ad6b634c8c73590db5e9993e80598fb347ae3998fca69b66a030f",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-08-01T08:06:12Z",
    "title_canon_sha256": "a31f43adfc0f0c67cbf77301dde77e2b4615687d0763f7670e68da6f7bfa4acf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.00213",
    "kind": "arxiv",
    "version": 1
  }
}